Rotary engine.



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PATENTED OCT. 10, 1905. J. B. PETIT. ROTARY ENGINE.

APPLICATION FILED JULY 25 1904 Jm I? am, 744

mam-x. 0 cv No. 801,686. PATENTED OCT. 10, 1905.

J. B. PETIT. ROTARY ENGINE.

APPLICATION FILED JULY 25.1904.

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UNITED STATES PATENT OFFICE.

JEAN BAPTISTE PETIT, OF MARSEILLES, FRANCE, ASSIGNOR OF ONE-HALF TO JOSEPH BOTTELBERGHS, OF BROOKLYN, NEIV YORK.

ROTARY ENGINE.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed July 25, 1904. Serial No. 217,982.

To all whom it may concern.-

Be it known that I, J EAN BAPTISTE Pn'rrr, a citizen of France, and a resident of Marseilles,

in the Province of Bouches d u Rhone, France,

have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification.

This invention relates to rotary engines; and its object is the production of a rotary engine in which the driving fluid stcam. air, and the like-can be used expansively and in which the friction of the surfaces is reduced to a minimum and the parts of the engine constructed to be easily inspected and repaired.

In the drawings, Figure 1 represents a front elevation of the engine. Fig. 1 shows a top plan view of Fig. 1. Fig. 2 shows a partial section of Fig. 1 on the line a. Fig. 3 is a partial section of the engine, as on the line a" an of Fig. 2. Fig. 4: represents a partial section of Fig. 1 on the line :0

The engine consists of the housings P P, which together constitute the cylinder F. Flanges p 2, extending from the said housings, are bolted together with the bolts P. Bearings p p in the housings support the engine-shaft J, which latter carries the pulley L. A cam I extends from the shaft J and supports the piston H, which is provided with packing-rings 71 h. The cam operates between the faces of the collars 19 that extend from the housings P, and has the opening I, by means of which steam can be exhausted from the cylinder on each side of said cam.

Inlet-pipes E E connect with the ports 6 a, respectively, and are joined with the throttlevalve The ports 6 e are properly faced to receive and form bearings for the slidevalves G G, respectively. The slide-valves contain cavities g g and carry the rollers M M, which latter are so journaled in apertures made in the slid e-valves to avoid leakage.

In the cylinder F is formed the exhaustcavity K, which leads to the exhaust-pipe K.

On the faces of the housings are bolted the bonnets P, so as to cover the sides of the slide-valves G G. Grooves I are formed in said bonnets and grooves p in the collars p of the housings to form bearings and supports for the valves G G.

To operate the engine, the driving fluidsteam and the like-enters the pipes E E by way of the throttle-valve E and is then led into the cylinder F through the cavities g g of the slide-valves G G. The fluid impinges against the piston H and drives the latter. As the piston turns, the cam I bears against the rollers M M of the slide-valves G G, actuating them to properly admit the driving fluid, the pistons being moved outwardly from the center of the engine by the cam. The pressure of the fluid in the ports 0 0 against the ends of the said slide-valves forces the latter inwardly against the cam I. hen the piston passes the cavity K, the exhaust is opened for the escape of the driving fluid through the exhaust-pipe K.

Having described my invention, I claim 1. In a rotary engine the combination of a cylinder comprising housings, a shaft arranged to rotate therein, a cam extending from the shaft and having an opening leading to both housings, a piston supported on the cam, slide-valves located in ports leading to the cylinder, arranged to bear against the cam and moved inwardly by the driving fluid, and then moved outwardly by the cam.

2. In a rotary engine the combination of a cylinder having inlet and exhaust ports, a shaft supported in hearings in the cylinder, a cam having an opening therethrough extending from the shaft, a piston supported by the cam, slide-valves in the inlet-ports. the said slide-valves having cavities, rollers in the slide-valves arranged to bear against the cam, and grooves in the cylinder supporting said valves.

3. In a rotary engine the combination of housings bolted together, and having grooves in their sides, to form a cylinder, a shaft journaled in the housings, slide-valves with cavities actuated in inlet-ports leading to the cylinder and bearing in said grooves, a cam extending from the shaft and having an opening therethrough, a piston supported by the cam, rollers journaled in the valves and arranged to bear against the cam, and an exhaust-pipe leading from an exhaust-cavity in the cylinder.

Signed at Marseilles, in the Province of Bonches du Rhone, France, this 28th day of June,

JEAN BAPTISTE PETIT. WVitnesses:

HUBERT VIVIEN Rrvnnn, ALLAN MAGFARLANE. 

